State Opposition leader John Robertson has confirmed both men were formally expelled two weeks ago for bringing the party into disrepute over allegations raised at the Independent Commission Against Corruption (ICAC).

Mr Robertson says while everyone remains transfixed by the ICAC, the pressing debates of state politics are gathering dust.

In a speech to be delivered today, he says he is hoping that will now change.

"Both these individuals have now been expelled from the party and the processes are concluded," he will say.

"What either of them may seek to do is a matter for them.

"My responsibility is to make sure that I clean up this show."

Mr Robertson is attempting to woo voters back to the party before the federal election in September.

While he admits the corruption inquiry is hitting Labor at the state level, he says it will not influence the outcome of the election.

But Mr Robertson's parliamentary colleague and former premier Nathan Rees told the ABC in March ICAC would be an electoral disaster.